Seismic Analysis of the Reservoir-Earth Dam-Pore Fluid System Using an Integrated Numerical Approach
Location
San Diego, California
Presentation Date
27 May 2010, 4:30 pm - 6:20 pm
Abstract
In this paper, an integrated numerical approach is proposed for analyzing the seismic response of the reservoir-earth dam-pore fluid system subjected to earthquake loading. The fluid-mechanical coupling approach is deployed to capture the fluid-solid matrix coupling effects automatically. A hysteretic damping constitutive law is adopted to follow the modulus reduction and damping ratio curves. The Finn-Byrne equation is used to represent the shear-induced volumetric strain behavior of liquefiable materials. The interaction between the reservoir water and the dam boundary is treated as a dynamically updated pressure boundary condition. The deconvolution is accomplished by the equivalent linear program SHAKE. An automatic remeshing algorithm is employed to replace the badly distorted mesh with a new regular mesh whenever needed during the system evolution process. The system integrating these elements is constructed in the explicit finite-difference program FLAC, and applied to analyze the responses of a reservoir dam under seismic loading in both horizontal and vertical directions; the potential liquefied regions, earthquake-induced settlement and lateral spreading predicted by the simulation are presented.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Han, Yanhui and Hart, Roger, "Seismic Analysis of the Reservoir-Earth Dam-Pore Fluid System Using an Integrated Numerical Approach" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 28.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session04b/28
Included in
Seismic Analysis of the Reservoir-Earth Dam-Pore Fluid System Using an Integrated Numerical Approach
San Diego, California
In this paper, an integrated numerical approach is proposed for analyzing the seismic response of the reservoir-earth dam-pore fluid system subjected to earthquake loading. The fluid-mechanical coupling approach is deployed to capture the fluid-solid matrix coupling effects automatically. A hysteretic damping constitutive law is adopted to follow the modulus reduction and damping ratio curves. The Finn-Byrne equation is used to represent the shear-induced volumetric strain behavior of liquefiable materials. The interaction between the reservoir water and the dam boundary is treated as a dynamically updated pressure boundary condition. The deconvolution is accomplished by the equivalent linear program SHAKE. An automatic remeshing algorithm is employed to replace the badly distorted mesh with a new regular mesh whenever needed during the system evolution process. The system integrating these elements is constructed in the explicit finite-difference program FLAC, and applied to analyze the responses of a reservoir dam under seismic loading in both horizontal and vertical directions; the potential liquefied regions, earthquake-induced settlement and lateral spreading predicted by the simulation are presented.
